From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jarek Poplawski Subject: Re: HTB accuracy for high speed Date: Mon, 18 May 2009 11:14:11 +0000 Message-ID: <20090518111411.GB11162@ff.dom.local> References: <298f5c050905150745p13dc226eia1ff50ffa8c4b300@mail.gmail.com> <298f5c050905150749s3597328dr8dd15adbd7a37532@mail.gmail.com> <20090516083158.GA3013@ami.dom.local> <298f5c050905180339k77006e21ka0955958489c41c7@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org, kaber@trash.net, davem@davemloft.net, devik@cdi.cz To: Antonio Almeida Return-path: Received: from wa-out-1112.google.com ([209.85.146.179]:40732 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751466AbZERLOT (ORCPT ); Mon, 18 May 2009 07:14:19 -0400 Received: by wa-out-1112.google.com with SMTP id j5so1078575wah.21 for ; Mon, 18 May 2009 04:14:21 -0700 (PDT) Content-Disposition: inline In-Reply-To: <298f5c050905180339k77006e21ka0955958489c41c7@mail.gmail.com> Sender: netdev-owner@vger.kernel.org List-ID: On Mon, May 18, 2009 at 11:39:02AM +0100, Antonio Almeida wrote: > Hi! > > Here the information you asked: Very nice, but there are some questions: - if this analyser uses tcp we definitely need tso off as well during these tests, - it would be nice to use two patches I've sent to exclude known (now) reasons. With the above I expect accuracy should be better, but definitely not like hfsc (plus no higher than 1000Mbit rate reported after stopping effect). Thanks, Jarek P. > > # ethtool -k eth0 > Offload parameters for eth0: > rx-checksumming: on > tx-checksumming: on > scatter-gather: on > tcp segmentation offload: on > udp fragmentation offload: off > generic segmentation offload: off > > # ethtool -k eth1 > Offload parameters for eth1: > rx-checksumming: on > tx-checksumming: on > scatter-gather: on > tcp segmentation offload: on > udp fragmentation offload: off > generic segmentation offload: off > > The bridge is between eth0 and eth1 ...